The Universe - Electromagnetic spectrum

Question 1

What is the electromagnetic spectrum?

Answer 1

The range of all types of EM radiation

Question 2

What are the types of Waves: ranging from longest to shortest wavelength.

Answer 2

Radio Waves, Microwaves, Infared Waves, Visible Light, Ultraviolet Waves, X-Rays, Gamma Rays

Question 3

What is Radio Waves used for?

Answer 3

Used to transmit signals for television and radios

Question 4

What are Microwaves used for?

Answer 4

Used in radar to detect distances and speed and in cell phones. Used to cook foods quickly.

Question 5

What are Infared waves used for?

Answer 5

Used in heat lamps to warm foods and thermograms which show temperature in color

Question 6

What is Visible Lights used for?

Answer 6

The very small part of the spectrum that can be seen with the human eye

Question 7

What are Ultraviolet waves used for?

Answer 7

Used to kill bacteria in hospitals - source of vitamin D.

Question 8

What are X-rays used for?

Answer 8

Used in Medicine, can penetrate through most matter but not bones

Question 9

What are Gamma Rays used for?

Answer 9

Used to treat cancer cells